Morris, Ashley B., Nicole K. Millsaps, Kelsi Q. Mason, Jacquelyn S. Howell, and James H. Speer. "Mature Beech Trees (Fagus grandifolia; Fagaceae) Are Persistently Clonal in Coves and Beech Gaps in the Great Smoky Mountains." American Journal of Botany 101, no. 2 (2014): 381-388.

Speer, James H., Henri D. Grissino-Mayer, Kenneth H. Orvis, and Cathryn H. Greenberg. "Climate Response of Five Oak Species in the Eastern Deciduous Forest of the Southern Appalachian Mountains, USA." Canadian Journal of Forest Research 39 (2009): 507-518.

Biermann, Christine Patricia, C. M. Gentry, James H. Speer, K. Cunningham, J. Gentry, N. Hoalst-Pullen, A. Koutavas, B. Parrish, D. Landrum, M. Larkins et al. "Developing an Eastern Hemlock Chronology in Albright Grove, Great Smoky Mountains National Park." In Association of American Geographers Annual Meeting. Boston, MA: Association of American Geographers, 2008.